In the new Famitsu scans, there is a picture of Saix and Axel talking. Saix says, "...the concealed room, the place Xion was born---".
Xemnas has control of the Room of Sleep and in the scene between Xigbar and Zexion in KH2FM, Xigbar refers to the "other room", or the "Room of Awakening". It...